Picker-stick and sweep-stick coupling



- R. s. DODDS I PICKER STICK AND SWEEP STICK COUPLING Filegl July 14, 1922 gm v I N VEN TOR.

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Patented Dec. 30, 1924.

UNITED STATES PATENT OFFICE.

PICKER-STIOK AND SWEEP-STICK COUPLING.

Application filed July 14, 1922.

To all whom it may concern:

Be it known that I, ROBERT S. Donns, a subject of Great Britain, residing at \Vebster, in the county of Vorcester and State of Massachusetts, have invented certain new and useful Improvements in Picker-Stick and Sweep-Stick Couplings, of which the following is a specification.

This invention relates to the picker mechanism of looms, and has for one of its objects to provide improved means for coupling the picker stick to the sweep stick, whereby the sweep stick may be adjustably coupled to the picker stick to control the length of the stroke of the sweep stick and without the necessity for perforating the picker stick or otherwise weakening the same.

Another object of the invention is to provide a device of this character which may be applied to looms of varying sizes and construction without material structural change either in the loom mechanism or in the improved device.

IVith these and other objects in view the invention consists in certain novel features of construction as hereinafter shown and described and then specifically pointed out in the claims, and in the drawings illustrative of the preferred embodiment of the invention:,

Figure 1 is a side elevation of the improved device.

Fig. 2 is an enlarged detached perspective view of the adjustable sleeve or collar.

Fig. 3 is an enlarged detached perspective view of the coupling member attached to the sweep stick.

Fig. 4 is a detail plan view with the picker stick in transverse section on the line 1-4 of Fig. 1.

A part of the picker stick is represented at 10 and pivoted near the lower end at 11 to an arm or bracket extending from the frame of a loom, the latter not being shown, as it forms no part of the present device.

A portion of the return strap is represented at 13 and connected at 14 to the lower end of the picker stick and a portion of the sweep stick is represented at 15 and Serial No. 575,095.

provided with the usual coupling strap 16 enclosing the picker stick, and bolted on the sweep stick 15 by bolts 22.

Encompassing the picker stick 10 is a sleeve or collar 17 having a wear plate 18 and a clamp screw 19 by which the collar may be adjustably coupled to the picker stick. The collar 17 is provided with a lateral stud 20 to which one end of a link 21 is pivoted, as shown.

Attached to the strap 16 of the sweep stick 15, for instance with one of the bolts 22 by which the strap is secured, is a clip device 23 having laterally directed ribs 2 1 to bite into the material of the strap, and thus increase the grip of the clip against the strap and prevent displacement of the clip. By this means one single bolt is sufiicient to hold the clip in posit-ion. At their confronting ends the link 21 and clip 24 are perforated to receive a pivot bolt 25, as shown.

By this simple arrangement the swee stick 15 is coupled to the picker stick an easily adjustable relative thereto, and the arts readily disassembled when required or for renewal or repairs of impaired portions without discarding the unimpaired portions.

The. preferred embodiment of the invention is disclosed in the drawings and set forth in the specification, but it will be understood that modifications within the scope of the'claimed invention may be made in the construction without departing from the principle of the invention or sacrificing any of its advantages.

Having thus fully described the invention, what is claimed as new is 1. In a device of the class described, the combination with a sweep stick having a U-shaped strap bolted thereto to receive the picker stick, of a clip plate attached to the sweep stick by one of the holding bolts of the strap, a collar bearing around the picker stick and adjust-able thereon and having a lateral stud, and a link pivoted at one end to the clip and engaging the stud of the collar at the other end.

2. In a device of the class described, the combination with a sweep stick having a U-shaped strap bolted thereto to receive the on and having a lateral stud, and a link picker stick, of a clip plate having longipivoted atone end to the clip and engaging tudinally directed bearing ribs and attached the stud of the collar at the other end; 10 to the sweep stick by one of the holding In testimony whereof, I aflix my signature 5 bolts of the strap and operating to compress hereto.

the ribs against the strap, a collar bearing around the picker-stick and adjustable therep .7 ROBERT S. DODDS. 

